EP2511594A1 - Reflector comprising recovery means of flow - Google Patents

Reflector comprising recovery means of flow Download PDF

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Publication number
EP2511594A1
EP2511594A1 EP12163870A EP12163870A EP2511594A1 EP 2511594 A1 EP2511594 A1 EP 2511594A1 EP 12163870 A EP12163870 A EP 12163870A EP 12163870 A EP12163870 A EP 12163870A EP 2511594 A1 EP2511594 A1 EP 2511594A1
Authority
EP
European Patent Office
Prior art keywords
chips
lighting
reflector
reflective material
recovery means
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP12163870A
Other languages
German (de)
French (fr)
Other versions
EP2511594B1 (en
Inventor
Massimo Gattari
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Iguzzini Illuminazione SpA
Original Assignee
Iguzzini Illuminazione SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Iguzzini Illuminazione SpA filed Critical Iguzzini Illuminazione SpA
Publication of EP2511594A1 publication Critical patent/EP2511594A1/en
Application granted granted Critical
Publication of EP2511594B1 publication Critical patent/EP2511594B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/08—Lighting devices intended for fixed installation with a standard

Definitions

  • the present invention relates to the technical field of lighting apparatuses and in particular to the technical field of lighting apparatuses comprising reflectors adapted to optimize the light emission.
  • Reflectors, diffusers and light emission devices are designed and chosen so as to provide precise lighting conditions, in terms of emission diagram and light intensity emitted.
  • the emission diagram, and therefore the overall light emission of the lighting apparatus is strongly influenced by the presence of said supports which are often placed in positions such as to constitute an obstacle for the emission itself and therefore to cast shadow areas on the object or on the area to be illuminated.
  • an object of the present invention is to provide a lighting apparatus, for example comprising support poles for fixing to the ground or to walls, adapted to emit an optimized lighting and such to correct the presence of possible shadow areas caused by said support poles and guarantee a correct illuminance of the object or the area to be illuminated.
  • the present invention concerns a lighting apparatus, in particular a lighting apparatus for fixing to the ground or walls, comprising recovery means of light flow adapted to prevent the presence of shadow areas, on the object or on the area to be illuminated, caused by the support poles of the lighting assembly of said lighting apparatus.
  • a preferred embodiment of the lighting apparatus comprises an optical assembly 10 equipped with two supports 11, 12 adapted to be associated with a support pole for fixing to the ground.
  • Said optical assembly 10 comprises a reflector 13 whose shape has substantially rotational symmetry, in turn comprising a compartment adapted to house a source of lighting associated to suitable power means and possibly associated to suitable heat dissipation means, equipped with recovery means of light flow comprising upper recovery means of light flow and lower recovery means of light flow.
  • said lower recovery means of light flow comprise: at least two chips 14, 14a made with reflective material, preferably made with a thermoplastic resin base (such as, for example, the resin known with the commercial name of ULTEMTM), comprising a surface metallizing.
  • Said at least two chips 14, 14a are preferably arranged close to the edge of said reflector 13 and in correspondence of said supports 11, 12.
  • said at least two chips 14, 14a made with reflective material comprise four sections 15, 15a, 16, 16a, 17, 17a, 18, 18a having approximately the same dimensions.
  • Sections 15, 16 and 15a, 16a positioned on one side of each of said chips 14, 14a have mirroring positioning with respect to the positioning of sections 17, 17a, 18, 18a positioned on the other side of each of said chips 14, 14a, said positionings being partially turned towards said source of lighting and towards the outlet of said reflector 13.
  • said chips 14, 14a have a satin finish.
  • Said upper recovery means of light flow comprise: at least two chips 19, 20 made with reflective material, for example aluminium with satin or rough finish, arranged in adjacent position and on opposite sides with respect to said source of lighting arranged at the top of said reflector 13, with inclination partially turned towards said source of lighting and towards the outlet of said reflector 13 and at least four chips 21, 22, 23, 24 made with reflective material, for example aluminium with mirror surface finish, also arranged in position adjacent and on opposite sides with respect to said source of lighting and having inclinations partially turned towards said source of lighting, towards the outlet of said reflector 13 and towards said chips 19, 20.
  • reflective material for example aluminium with satin or rough finish
  • the central sections 16, 16a, 17, 17a, of said chips 14, 14a made with reflective material of said lower recovery means of light flow are adapted to provide a lighting profile turned deep towards the shadow area of said supports 11, 12;
  • the peripheral sections 15, 15a, 18, 18a, of chips 14, 14a made with reflective material of said lower recovery means of light flow are adapted to provide a lighting profile turned towards the central area of the shadow area of said supports 11, 12;
  • said four chips 21, 22, 23, 24 made with reflective material of said upper recovery means of light flow are adapted to provide a lighting profile turned towards the shadow area, on the ground, of said supports 11, 12;
  • the two chips 19, 20 made with reflective material of said upper recovery means of light flow are adapted to provide a lighting profile turned towards the central area, on the ground, of said supports 11, 12.
  • an optical assembly 10 equipped with two supports 11, 12 adapted to be associated with a support pole for fixing to the ground is such to project a shadow profile towards the ground.
  • the shadow profile projected to the ground by a support projects a shadow profile to the ground which comprises sectors 1, 2, 3, 4, 7 and 8 shown in figure 7 .
  • reflector 13 comprising said recovery means of light flow comprising upper recovery means of light flow and lower recovery means of light flow operates in the following way: said chip 22 made with reflective material is adapted to direct the portion of light flow reflected towards said sector 1, said chip 21 made with reflective material is adapted to direct the portion of light flow reflected towards said sector 2, peripheral section 18a of said chips 14a is adapted to direct the portion of light flow reflected towards said sector 3 creating, however, shadow in said sector 5, peripheral section 15a of said chips 14a is adapted to direct the portion of light flow reflected towards said sector 4 creating, however, shadow in said sector 6, central section 17a of said chips 14a is adapted to direct the portion of light flow reflected towards said sector 5, central section 16a of said chips 14a is adapted to direct the portion of light flow reflected towards said sector 6, said chip 20 made with reflective material is adapted to direct the portion of light flow reflected towards said sector 7 while said chip 19 made with reflective material is adapted to direct the portion of light flow reflected towards said sector 8.
  • the recovery means of light flow comprising said chips 15, 16, 17, 18, 23 and 24 operate in such a way as to recover the shadow profile projected to the ground by said support 12.

Abstract

The present invention concerns a lighting apparatus, in particular a lighting apparatus for fixing to the ground or walls, comprising recovery means (19,20-24) of light flow adapted to prevent the presence of shadow areas, on the object or on the area to be illuminated, caused by the support poles of the lighting assembly of said lighting apparatus.

Description

    Field of the invention
  • The present invention relates to the technical field of lighting apparatuses and in particular to the technical field of lighting apparatuses comprising reflectors adapted to optimize the light emission.
    • State of the art
  • It is known how one of the most important parameters relative to lighting apparatuses is constituted by their light emission. Reflectors, diffusers and light emission devices are designed and chosen so as to provide precise lighting conditions, in terms of emission diagram and light intensity emitted.
  • In the case of lighting apparatuses of the suspended type, the design of the light emission of the apparatus itself takes place in a relatively simpler manner with respect to the case of lighting apparatus equipped, for example, with support poles for fixing to the ground.
  • Indeed, in this case, the emission diagram, and therefore the overall light emission of the lighting apparatus, is strongly influenced by the presence of said supports which are often placed in positions such as to constitute an obstacle for the emission itself and therefore to cast shadow areas on the object or on the area to be illuminated.
  • This disadvantage is more important the greater the dimensions of the support poles of the lighting apparatus which are found in intermediate position between the light emission devices and the object or the area to be illuminated, and it is clear the need to obviate the technical problem described so as to recover the lost fraction of light flow and obtain an optimal or almost optimal light emission, even in presence of lighting apparatuses equipped with support poles for fixing to the ground.
  • Therefore, an object of the present invention is to provide a lighting apparatus, for example comprising support poles for fixing to the ground or to walls, adapted to emit an optimized lighting and such to correct the presence of possible shadow areas caused by said support poles and guarantee a correct illuminance of the object or the area to be illuminated.
    • Brief description of the figures
    • Fig. 1 shows a plan view of a preferred embodiment of the lighting apparatus according to the present invention, comprising recovery means of flow.
    • Fig. 2 shows a front elevation view of a preferred embodiment of the lighting apparatus according to the present invention, comprising recovery means of flow.
    • Fig. 3 shows an axonometric view of a preferred embodiment of the lighting apparatus according to the present invention, comprising recovery means of flow.
    • Fig. 4 shows a section view of a preferred embodiment of the lighting apparatus according to the present invention, comprising recovery means of flow.
    • Fig. 5 shows a plan view and a side section view of a preferred embodiment of the reflector of the lighting apparatus according to the present invention, comprising recovery means of flow.
    • Fig. 6 shows an axonometric view of a preferred embodiment of the reflector of the lighting apparatus according to the present invention, comprising recovery means of flow.
    • Fig. 7 shows the profile of the shadow projected towards the ground from the lighting apparatus according to the present invention, without recovery means of flow.
    Summary of the invention
  • The present invention concerns a lighting apparatus, in particular a lighting apparatus for fixing to the ground or walls, comprising recovery means of light flow adapted to prevent the presence of shadow areas, on the object or on the area to be illuminated, caused by the support poles of the lighting assembly of said lighting apparatus.
    • Detailed description of the invention
  • With reference to the accompanying drawings 1, 2, 3 and 4, a preferred embodiment of the lighting apparatus according to the present invention comprises an optical assembly 10 equipped with two supports 11, 12 adapted to be associated with a support pole for fixing to the ground.
  • Said optical assembly 10 comprises a reflector 13 whose shape has substantially rotational symmetry, in turn comprising a compartment adapted to house a source of lighting associated to suitable power means and possibly associated to suitable heat dissipation means, equipped with recovery means of light flow comprising upper recovery means of light flow and lower recovery means of light flow.
  • With reference to the accompanying drawings 4, 5 and 6, said lower recovery means of light flow comprise: at least two chips 14, 14a made with reflective material, preferably made with a thermoplastic resin base (such as, for example, the resin known with the commercial name of ULTEM™), comprising a surface metallizing. Said at least two chips 14, 14a are preferably arranged close to the edge of said reflector 13 and in correspondence of said supports 11, 12. In a preferred embodiment of the present invention, said at least two chips 14, 14a made with reflective material comprise four sections 15, 15a, 16, 16a, 17, 17a, 18, 18a having approximately the same dimensions. Sections 15, 16 and 15a, 16a positioned on one side of each of said chips 14, 14a have mirroring positioning with respect to the positioning of sections 17, 17a, 18, 18a positioned on the other side of each of said chips 14, 14a, said positionings being partially turned towards said source of lighting and towards the outlet of said reflector 13.
  • Preferably, said chips 14, 14a have a satin finish.
  • Said upper recovery means of light flow comprise: at least two chips 19, 20 made with reflective material, for example aluminium with satin or rough finish, arranged in adjacent position and on opposite sides with respect to said source of lighting arranged at the top of said reflector 13, with inclination partially turned towards said source of lighting and towards the outlet of said reflector 13 and at least four chips 21, 22, 23, 24 made with reflective material, for example aluminium with mirror surface finish, also arranged in position adjacent and on opposite sides with respect to said source of lighting and having inclinations partially turned towards said source of lighting, towards the outlet of said reflector 13 and towards said chips 19, 20.
  • The central sections 16, 16a, 17, 17a, of said chips 14, 14a made with reflective material of said lower recovery means of light flow are adapted to provide a lighting profile turned deep towards the shadow area of said supports 11, 12; the peripheral sections 15, 15a, 18, 18a, of chips 14, 14a made with reflective material of said lower recovery means of light flow are adapted to provide a lighting profile turned towards the central area of the shadow area of said supports 11, 12; said four chips 21, 22, 23, 24 made with reflective material of said upper recovery means of light flow are adapted to provide a lighting profile turned towards the shadow area, on the ground, of said supports 11, 12; the two chips 19, 20 made with reflective material of said upper recovery means of light flow are adapted to provide a lighting profile turned towards the central area, on the ground, of said supports 11, 12.
  • In greater detail and still with reference to the accompanying drawings 1, 2, 3 and 4, an optical assembly 10 equipped with two supports 11, 12 adapted to be associated with a support pole for fixing to the ground is such to project a shadow profile towards the ground. In particular, the shadow profile projected to the ground by a support, for example said support 11, projects a shadow profile to the ground which comprises sectors 1, 2, 3, 4, 7 and 8 shown in figure 7.
  • In detail, reflector 13 comprising said recovery means of light flow comprising upper recovery means of light flow and lower recovery means of light flow operates in the following way: said chip 22 made with reflective material is adapted to direct the portion of light flow reflected towards said sector 1, said chip 21 made with reflective material is adapted to direct the portion of light flow reflected towards said sector 2, peripheral section 18a of said chips 14a is adapted to direct the portion of light flow reflected towards said sector 3 creating, however, shadow in said sector 5, peripheral section 15a of said chips 14a is adapted to direct the portion of light flow reflected towards said sector 4 creating, however, shadow in said sector 6, central section 17a of said chips 14a is adapted to direct the portion of light flow reflected towards said sector 5, central section 16a of said chips 14a is adapted to direct the portion of light flow reflected towards said sector 6, said chip 20 made with reflective material is adapted to direct the portion of light flow reflected towards said sector 7 while said chip 19 made with reflective material is adapted to direct the portion of light flow reflected towards said sector 8.
  • In the same way, the recovery means of light flow comprising said chips 15, 16, 17, 18, 23 and 24 operate in such a way as to recover the shadow profile projected to the ground by said support 12.
  • The overall effect, therefore, will be such to cancel the shadow areas connected to the presence of supports 11 and 12, providing a similar ground lighting to the one which would be provided by a lighting apparatus without said supports.

Claims (10)

  1. A lighting apparatus comprising an optical assembly (10) equipped with supports (11, 12) adapted to be associated with a support pole for fixing to the ground, said optical assembly comprising a reflector whose shape has substantially rotational symmetry, in turn comprising a compartment adapted to house a source of lighting and recovery means of light flow comprising a plurality of chips made with reflective material, adapted to reflect part of the light emission of said source of lighting in such a direction to illuminate the shadow areas generated by said supports.
  2. The apparatus according to claim 1, wherein said recovery means of light flow comprise: upper recovery means of light flow, in turn comprising a plurality of chips made with reflective material arranged on the inner face of said reflector (13) in substantially intermediate position with respect to the top and to the side of said reflector (13) and about the source of lighting arranged at the top of said reflector (13), and lower recovery means of light flow comprising a plurality of chips made with reflective material arranged close to the edge of said reflector (13) and at said supports (11, 12).
  3. The apparatus according to claims 1-2, wherein said upper recovery means of light flow comprise two chips (19, 20) made with reflective material arranged in position next to and on opposite sides to said source of lighting arranged at the top of said reflector (13), with inclination partially turned towards said source of lighting and towards the outlet of said reflector (13) and four chips (21, 22, 23, 24) made with reflective material also arranged in position next to and on opposite sides to said source of lighting and having inclinations partially turned towards said source of lighting, towards the outlet of said reflector (13) and towards said chips (19, 20).
  4. The apparatus according to claims 1-3, wherein said lower recovery means of light flow comprise two chips (14, 14a) arranged close to the edge of said reflector (13) and at said supports (11, 12).
  5. The apparatus according to claim 4, wherein said two chips (14, 14a) made with reflective material comprise four sections (15, 15a, 16, 16a, 17, 17a, 18, 18a), of which the sections (15, 16 e 15a, 16a) positioned on one side of each of said chips (14, 14a) have mirroring positioning with respect to the positioning of the sections (17, 17a, 18, 18a) positioned on the other side of each of said chips (14, 14a), said positionings being partially turned towards said source of lighting and towards the outlet of said reflector (13).
  6. The apparatus according to claim 5, wherein said chips (14, 14a) comprise a satin finish.
  7. The apparatus according to claims 3-6, wherein said two chips (19, 20) made with reflective material comprise a surface satin or rough finish.
  8. The apparatus according to claims 3-7, wherein said four chips (21, 22, 23, 24) made with reflective material comprise a mirror surface finish.
  9. The apparatus according to claims 3-8, wherein said chips (19, 20, 21, 22, 23, 24) made with reflective material are made in aluminium.
  10. the apparatus according to claims 4-9, wherein said chips (14, 14a) are made with a thermoplastic resin base comprising a surface metallizing.
EP12163870.4A 2011-04-12 2012-04-12 Reflector comprising recovery means of flow Not-in-force EP2511594B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000067A ITFI20110067A1 (en) 2011-04-12 2011-04-12 REFLECTOR INCLUDING FLOW RECOVERY VEHICLES.

Publications (2)

Publication Number Publication Date
EP2511594A1 true EP2511594A1 (en) 2012-10-17
EP2511594B1 EP2511594B1 (en) 2018-12-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP12163870.4A Not-in-force EP2511594B1 (en) 2011-04-12 2012-04-12 Reflector comprising recovery means of flow

Country Status (3)

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EP (1) EP2511594B1 (en)
ES (1) ES2714651T3 (en)
IT (1) ITFI20110067A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6190023B1 (en) * 1997-04-07 2001-02-20 Nsi Enterprises, Inc. Sporting field illuminating lighting fixtures having improved light distribution
US6502965B1 (en) * 2000-04-18 2003-01-07 General Electric Company Light assembly having improved glare control and increased performance
WO2009145883A1 (en) * 2008-05-27 2009-12-03 Ruud Lighting, Inc. Led lighting fixture

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6190023B1 (en) * 1997-04-07 2001-02-20 Nsi Enterprises, Inc. Sporting field illuminating lighting fixtures having improved light distribution
US6502965B1 (en) * 2000-04-18 2003-01-07 General Electric Company Light assembly having improved glare control and increased performance
WO2009145883A1 (en) * 2008-05-27 2009-12-03 Ruud Lighting, Inc. Led lighting fixture

Also Published As

Publication number Publication date
EP2511594B1 (en) 2018-12-12
ITFI20110067A1 (en) 2012-10-13
ES2714651T3 (en) 2019-05-29

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